//apply filter
private void applyFilter(Filter filter)
{
BitmapSource source = (BitmapSource)this.originalImage.Source;
if (filter is ConvolutionFilter)
{
Bitmap originalBitmap = source.ConvertToBitmap();
ConvolutionFilter convolutionFilter = (ConvolutionFilter)filter;
bool parsed = false;
if (this.offsetTextField.Text.Replace(" ", "").Length != 0)
{
float offset = 0;
parsed = (float.TryParse(this.offsetTextField.Text.Replace(" ", ""), out offset));
if (parsed == false)
{
MessageBox.Show("Enter valid offset / offset value", "Invalid parameters", MessageBoxButton.OK, MessageBoxImage.Information);
return;
}
convolutionFilter.Offset = offset;
}
if (this.factorTextField.Text.Replace(" ", "").Length != 0)
{
float factor = 0;
parsed = parsed && (float.TryParse(this.factorTextField.Text.Replace(" ", ""), out factor));
if (parsed == false)
{
MessageBox.Show("Enter valid offset / offset value", "Invalid parameters", MessageBoxButton.OK, MessageBoxImage.Information);
return;
}
convolutionFilter.Factor = factor;
}
Bitmap filteredBitmap = originalBitmap.ConvolutionFilter(convolutionFilter);
BitmapImage bitmapImage = filteredBitmap.BitmapToImageSource();
this.filteredImage.Source = bitmapImage;
}
else //function filter
{
FunctionFilter functionFilter = (FunctionFilter)filter;
if (functionFilter is IFunctionFilterOffset)
{
IFunctionFilterOffset factorFunctionFilter = (IFunctionFilterOffset)functionFilter;
float coeff = 0;
bool parsed = (float.TryParse(this.coeffTextField.Text.Replace(" ", ""), out coeff));
if (parsed == false)
{
MessageBox.Show("Enter valid coefficient value", "Invalid parameters", MessageBoxButton.OK, MessageBoxImage.Information);
return;
}
factorFunctionFilter.Offset = coeff;
}
WriteableBitmap writeableBitmap = functionFilter.ApplyFunctionFilter((BitmapImage)this.originalImage.Source);
this.filteredImage.Source = writeableBitmap;
}
}
